50 lines
1.5 KiB
Plaintext
50 lines
1.5 KiB
Plaintext
$NetBSD: README,v 1.9 2002/07/10 15:12:34 fredette Exp $
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BUGS/PROBLEMS:
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* rtld.c around line 184:
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#iffdef __alpha__
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/* XXX XXX XXX */
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_rtld_objself.pltgot = NULL;
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#endif
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It's a workaround for a linker bug, and will go away when the linker is
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fixed.
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* The method used to relocate ld.so is shoddy and fragile. Currently it's
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something like:
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alpha, hppa, powerpc:
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(1) assembly code relocates RELATIVE relocations in the GOT
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(on some ports, all relative relocations; this will probably
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have to be #ifdef'd in reloc.c), assuming that everything
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in the GOT is a RELATIVE relocation. On the hppa, this
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is actually done in C code.
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(2) alpha, hppa only: C code relocates the rest of the loader,
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excluding those RELATIVE relocations already done (via an ...
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iffy heuristic).
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arm, i386, m68k, sparc:
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(1) C code relocates the loader in _rtld_init() carefully so that
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it does not touch any globals.
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mips:
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(1) loads ld.elf_so at 0, so no relocating is necessary.
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Something better (like that the glibc ELF ld.so does) should be done
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eventually, where a single set of C code is compiled twice, once for
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normal use, and once to be used to relocate the shared linker. No
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relocations should be processed in assembly language.
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* On the Alpha, this code Really needs to be checked to be sure that
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it doesn't make calls that could use FP, while doing lazy binding.
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TO DO:
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* Support for coexistance of 32-bit and 64-bit ELF on platforms that can
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do that.
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* Support for relocating ld.elf_so on mips
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